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6
PARTS OF THE THERMOSTAT
The Back of The Thermostat Body
Turn the thermostat body over. On the back are
the 3 “AA” Energizer
®
alkaline batteries.
The “AA” Energizer
®
alkaline batteries provide
power to the thermostat when the 24 VAC power
is interrupted (for example, when you remove
the thermostat from the wall for programming).
Fresh batteries will maintain the stored program
for approximately a year. If power loss is long
enough for the program to be lost, the thermo-
stat will automatically return to the factory pro-
grammed temperatures (64°F heating and 82°F
cooling) when power is restored. You must
reprogram the thermostat if this happens.
If the word BATTERY is flashing in the display
window, the batteries are low and should be
replaced with fresh “AA” Energizer
®
alkaline
batteries.
Use
SYSTEM
SWITCH
to turn the thermostat OFF
before removing the thermostat from the
wall to replace batteries.
CAUTION
!